#map { background: #e9f0f4; }
    .stable-offline-basemap-tile {
      box-sizing: border-box;
      width: 256px;
      height: 256px;
      background-color: #e9f0f4;
      background-image:
        linear-gradient(rgba(2, 48, 71, 0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(2, 48, 71, 0.055) 1px, transparent 1px);
      background-size: 64px 64px;
      border: 1px solid rgba(2, 48, 71, 0.035);
    }
    .leaflet-control-minimap { background: #dce7ec; }
    .basemap-fallback-notice {
      position: fixed;
      top: 74px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 2200;
      max-width: min(680px, calc(100vw - 36px));
      padding: 9px 14px;
      border: 1px solid #f1c40f;
      border-radius: 8px;
      color: #ffffff;
      background: rgba(2, 48, 71, 0.94);
      box-shadow: 0 4px 18px rgba(0, 0, 0, 0.28);
      font: 600 13px/1.35 Arial, sans-serif;
      text-align: center;
    }